Relay is one of the leading manufacturers of various data acquisition components in Europe. The company building located in Paderborn (Germany) is equipped with modern tools and modern technology. A team composed of experienced engineers and skilled workers designs, develops, and produces cutting-edge technology for individual or series measurement. Relay GmbH's close cooperation with the University of Paderborn lays the foundation for qualified system solutions as well as testing new processes and applications. Relay focuses on the concept, development, and manufacturing of data acquisition component M-Bus products and system solutions. Through Relay products, existing M-Bus installations can be made compatible, or new installations can be directly equipped with advanced buses. For example, almost all buildings on the newly designed Potsdamer Platz in Berlin are equipped with innovative devices from Relay GmbH for consumption detection. A key focus is the development of new, more powerful masters. These hosts are the core of every M-Bus installation. They collect, store, and manage data from all meters and sensors connected to the network. This enables centralized reading of all recorded data. Relay provides the most suitable host for almost all applications. Starting from large control panels that can evaluate heights up to 250 meters and even expand to an unlimited number of corresponding additional devices, down to MicroMaster, which is very suitable as a handheld device combined with a laptop for small installations up to 10 meters. This series of special masters is unique.